Is this more about the fear of a return of your agoraphobia though, Phil? Having to self-isolate must bring back some bad memories? Being unvaxxed won't force you to be a prisoner in your house forever though. You may not be able to travel abroad without being subjected to a swab test but is that the end of the world? You are worried about travel in normal circumstances..so being unvaxxed gives you an excuse not to feel compelled to complete your bucket list before you are "too old"?